I'm running netstat -s on my Ubuntu box at home to get network interface statistics. There are a bunch of numbers printed out, like this:
Ip: 10256 total packets received 8 with invalid addresses 0 forwarded 0 incoming packets discarded 10247 incoming packets delivered 8918 requests sent out 63 dropped because of missing route Icmp: 0 ICMP messages received 0 input ICMP message failed. ICMP input histogram: 55 ICMP messages sent 0 ICMP messages failed ICMP output histogram: destination unreachable: 55 IcmpMsg: OutType3: 55 Tcp: 378 active connections openings 0 passive connection openings 5 failed connection attempts 17 connection resets received 30 connections established 8478 segments received 8223 segments send out 26 segments retransmited 0 bad segments received. 33 resets sent Udp: 911 packets received 55 packets to unknown port received. 0 packet receive errors 893 packets sent UdpLite: TcpExt: 85 TCP sockets finished time wait in fast timer 182 delayed acks sent Quick ack mode was activated 11 times 16 packets directly queued to recvmsg prequeue. 22002 bytes directly received in process context from prequeue 5397 packet headers predicted 11 packets header predicted and directly queued to user 922 acknowledgments not containing data payload received 477 predicted acknowledgments 2 congestion windows recovered without slow start by DSACK 16 congestion windows recovered without slow start after partial ack 24 other TCP timeouts 11 DSACKs sent for old packets 11 DSACKs received 8 connections reset due to unexpected data 7 connections reset due to early user close TCPDSACKIgnoredNoUndo: 1 TCPSackShiftFallback: 18 IPReversePathFilter: 1 IpExt: InMcastPkts: 65 OutMcastPkts: 21 InBcastPkts: 836 InOctets: 8228049 OutOctets: 1814741 InMcastOctets: 13209 OutMcastOctets: 4122 InBcastOctets: 102775
Is there any way that I can determine the time period over which these statistics were collected?